Black-headed Bunting at Godre'r-Graig

The bird below, photographed by Barbara Wood on 17th June, looks very much like the same bird that was  in Carmarthenshire the following day.

Black-headed Bunting(s)??

A male Black-headed Bunting was found by Glan & Anne Evans and Carol Mckee in their Carmarthenshire garden on the 18th. Interestingly a male was also photographed in a garden in Godre'r Graig in the Tawe Valley on the afternoon of 17th. I've not seen photographs of the Godre'r Graig bird yet, but the Carmarthenshire bird is distinctive in that it has a small black bib, a feature that Black-headed Bunting is not supposed to show! The two obvious questions are, a) do the records relate to the same bird? (which hopefully photo's will prove one way or the other), and b) is the bird a full-blooded BHB? If if wasn't for the bib I doubt there would be any question about this. (images (c) G. Evans)